How to get a rich signature in iOS Mail

iOS 6 supports HTML signatures in Mail. This is an advanced tip that requires being rather familiar with HTML.

1. Create your signature in an HTML file. Images will need to be published on a web server and referenced in the HTML markup.
2. Get the file onto your device (Dropbox works well).
3. Load the file so it displays formatted text, not code.
4. Copy.
5. Settings app > Mail, Contacts, Calendars > Signature.
6. Paste.

Mail will keep the HTML formatting including fonts, images, and links.